Cracked Block, 400D

400D Guy · Jan 13, 2012

Well, it was getting too good to be true -- head not cracked and in great shape, crank in great shape only requiring polishing and standard bearings, BUT, block is cracked on one side between two cylinders. Shop says the best way to fix a cracked block is to bore it 1/8", and place a well Locktited sleeve in there. Then put a new cylinder sleeve inside the block sleeve.

Going to get a cost this afternoon. May try to find a good block.
Ca-ching, ca-ching.

the tractor vet · Jan 13, 2012

Bore it and install a repair sleeve and your good to go . I have seen a lot of them crack between 2-3 and 3-4 . Good grief it is how old and has had how many hours of shell we say field testing on it . The block just stress relieved it's self . More then likely from improper shut down . Them old engines require a good warm up and a extended cool down . BUT will work harder then you want to on a lot less fuel then anything made today. I had a 450 D that i worked the bag off of for several years and the dumbest thing i ever did was sell it to up grade to a 460 and what a letdown i got .

mike1972chev · Jan 13, 2012

You said "upgrade" to a 460 ???? lol

Sorry,NOT poking fun tractor vet.

mike1972chev · Jan 13, 2012

Is there any water around the areas of the crack??? (Dont know if the block is wet in between cylinders on these ?????)

If not,chances are that NEW sleeve would me MORE stable than the original area of the block is.

400D Guy · Jan 13, 2012

(quoted from post at 09:20:11 01/13/12) Is there any water around the areas of the crack??? (Dont know if the block is wet in between cylinders on these ?????)

If not,chances are that NEW sleeve would me MORE stable than the original area of the block is.

Yes, the water was leaking past the sleeve and into the pan. It wasn't more than a drop or two every several hours. After running it about 8 hours, cracking the drain plug would get me about 1/2 teaspoon of antifreeze.

It's a dry sleeve, but I had one that you might say was wet. The machine shop foreman assured me that boring, sleeving and sealing, then installing the cylinder sleeve would do the trick. I told him to proceed.

mike1972chev · Jan 13, 2012

Yea,

IDK how good finding ANOTHER block would help you,or not???? It might be in WORSE shape than the one you got???

If they can properly "glue" that new,outer sleeve in your block,I would say it would be the way to go.Point might be "mute",but you wanna check ALL OTHER cylinders while you have the old sleeves removed!

If your gonna spend that BIG money,dont do it twice !!!!!

400D Guy · Jan 13, 2012

Yeh, they did check all cylinders, and minus bearings (still trying to find the cheapest way), it IS big money. So far, just south of $2000, probably twice the worth of the tractor!! That price is mostly labor, since I am supplying most of the parts. I'll tell you though, when this thing is done, it will be fine all around. I'm quite excited about the final outcome.

If I would have decided to replace the block, Steel Wheel would be who I would choose to come through for me. Talked to Mike and I think he told me a couple years back, somebody wanted a D264 block, and he tore down 5 engines to find one that wasn't cracked.

randy hall · Jan 13, 2012

i could sell you a good d-264 block for only one ca-ching.

Cracked Block, 400D

400D Guy

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the tractor vet

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mike1972chev

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mike1972chev

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400D Guy

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mike1972chev

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400D Guy

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randy hall

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